Section 3: Introduction; Overview - Meritor MM-0170 Maintenance Manual

Introduction

Overview

MX Series Medium-Duty Front Drive Steer Axles
This publication provides maintenance and service information
for Meritor MX-120, MX-120-HR and MX-120-EVO Series
medium-duty front drive steer axles. Both the standard MX-120
and MX-120-HR carriers are available with these axles. The axles
are designed specifically for use with the MTC-4210 and -4213
transfer cases as part of the Meritor medium-duty part-time 4x4 or
6x6 system.
To obtain maintenance and service information on the MTC Series
transfer cases, refer to the Service Notes page on the inside front
cover of this manual.
MX-120 Series Axle Standard Features
• Single axle capacities of 10,000 lb (4,536 kg) to 18,000 lb
(28,968 kg) GAWR
• 16.5 Q+™ cam brakes with outboard-mounted brake drums
• Meritor automatic slack adjusters
• Hub-piloted wheel mountings for 10 stud x 11.25-inch wheels
• Easy Steer™ king pin bushings
• ABS-ready wheel-ends with installed tooth wheel and sensor
• Standard MX-120 Series carrier with hypoid gearing with a wide
range of ratio selections from 4.30 to 6.43
• MX-120 High Retardation (HR) Series carrier with hypoid gearing
with ratio selections of 4.88, 5.57, 6.14 and 6.43
Typical Applications
• Utility vehicles
• Snow plows
• Block trucks
• Oil drillers
(16579)
Printed in USA Copyright Meritor, Inc., 2023
3 Introduction
MM-0170 / Revised 03-23
Page 11